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Shindaiwa 446s - User Manual

Shindaiwa 446s
60 pages
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Read this manual and familiarize yourself with its contents.
This machine is designed for cutting wood and timber. Use only for designated purpose.
Minimize the risk of injury to yourself and others.
Always wear eye protection when operating this machine.
Do not operate or service this machine unless you clearly understand this manual.
Keep this manual available at all times so that you can reference it whenever you
have a question about the use of this unit.
WARNING!
SHINDAIWA OWNER’S/OPERATOR’S MANUAL
446s CHAIN SAW
Part Number 69028-94310 Rev. 10/05
English ..........................1
Español ................... SP_1
Francais ..................FR_1

Table of Contents

Questions and Answers

  • A
    Ashley BerryJul 27, 2025
    Why is my Shindaiwa Chainsaw not starting even with fuel?
    • M
      murrayernestJul 27, 2025
      If your Shindaiwa Chainsaw engine doesn't start, it might be due to incorrect, stale, or contaminated fuel, or an incorrect fuel mixture. Refill the chainsaw with fresh, clean unleaded gasoline with a pump octane of 87 or higher, mixed with 50:1 Shindaiwa Premium 2-cycle mixing oil or an equivalent high-quality 2-cycle mixing oil.
  • E
    Elizabeth JonesAug 1, 2025
    What to do if my Shindaiwa Chainsaw won't start and I suspect a fuel issue?
    • W
      William BrownAug 1, 2025
      If your Shindaiwa Chainsaw engine doesn't start, check the fuel filter and vent for clogs. If clogged, replace the fuel filter or vent as needed, and then restart the chainsaw.
  • J
    Jorge TuckerAug 6, 2025
    What to do if my Shindaiwa 446s Chainsaw won't start and the spark plug is wet?
    • L
      Larry GrayAug 6, 2025
      If your Shindaiwa Chainsaw engine doesn't start and the plug is wet, there might be excess fuel in the cylinder. Remove the plug and crank the engine to clear the excess fuel. Then, reinstall the plug and try restarting the chainsaw.
  • D
    Dean WaltersAug 15, 2025
    What type of spark plug should I use if my Shindaiwa 446s doesn't start?
    • J
      Jennifer MartinezAug 15, 2025
      If your Shindaiwa Chainsaw engine doesn't start, the plug might be damaged internally or of the wrong size. Replace it with a NGK BPMR7A and try restarting.
  • M
    Matthew WardNov 9, 2025
    Why Shindaiwa Saw engine does not start?
    • D
      Diane IrwinNov 9, 2025
      If your Shindaiwa Saw engine isn't starting, here are a few potential causes: * The ignition switch might be in the “O” (OFF) position. Move it to the “I” (ON) position and try restarting. * The spark plug could be fouled, improperly gapped, damaged, or the wrong size. Clean and regap the plug to 0.6 - 0.7mm, or replace it with an NGK BPMR7A. Then, restart. * The fuel might be incorrect, stale, or contaminated, or the fuel mixture might be off. Refill with fresh, clean unleaded gasoline with a pump octane of 87 or higher, mixed with 50:1 Shindaiwa Premium 2-cycle mixing oil or an equivalent high-quality 2-cycle mixing oil. * If the plug is wet, there may be excess fuel in the cylinder. Crank the engine with the plug removed, reinstall the plug, and restart. * A loose spark plug....
  • J
    joshua59Nov 20, 2025
    What to do if Shindaiwa Saw has low power output?
    • L
      Lisa BenjaminNov 20, 2025
      If your Shindaiwa Saw has low power output, consider these potential causes and solutions: * You might be overworking the unit. Try cutting at a slower rate. * The fuel ratio could be improper. Refill with fresh, clean unleaded gasoline with a pump octane of 87 or higher mixed with 50:1 Shindaiwa Premium 2-cycle mixing oil or an equivalent high quality 2-cycle mixing oil. * The air cleaner element might be clogged. Clean or replace the air filter. * The fan, fan cover, or cylinder fins could be dirty or damaged. Clean, repair, or replace them as necessary. * There might be air leakage or a clogged fuel line. Repair or replace the fuel filter and/or fuel line. * The spark plug may be loose or damaged. Tighten or replace the plug with a NGK BPMR7A and restart. * There may be w...

Summary

Chain Saw Kickback Safety Devices

Chain Brake

Explains the dual-function chain brake designed to stop the chain during kickback.

Kickback Safety Precautions

Provides essential precautions to avoid kickback and maintain control of the saw.

Cutting Equipment

Discusses guide bar types and low kickback chains to reduce kickback risk.

Additional Safety Precautions

Mixing Fuel

Bar Oil

Explains the requirements and filling procedure for bar and chain oil.

Filling With Fuel

Provides instructions on how to properly fill the fuel tank with the correct fuel mixture.

Starting the Engine

Chain Brake

Chain Brake Testing

Outlines procedures for testing the proper engagement and function of the chain brake.

Cutting with the Saw

Felling Trees

Details the safety precautions and procedures for felling trees, both small and large.

Felling Larger Trees

Troubleshooting Guide

ENGINE DOES NOT START

Provides a guide to diagnose and resolve issues when the engine fails to start.

LOW POWER OUTPUT

Helps identify and fix problems related to the engine producing low power.

Shindaiwa 446s Specifications

General IconGeneral
BrandShindaiwa
Model446s
CategoryChainsaw
LanguageEnglish

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